A marine hydraulic steering gear

Abstract

The present invention relates to the technical field of hydraulic steering gear, and specifically to a marine hydraulic steering gear, comprising: an outer shell, an inner groove is opened inside the outer shell; a movable plate, the surface of the movable plate is provided with teeth, an extension plate is fixed on the surface of the movable plate, a first plug-in rod is plugged into the surface of the extension plate, a lower pressure rod is fixed on the surface of the first plug-in rod, and a plug-in hole is opened inside the inner groove; and an arched plate is arranged inside the inner groove; the beneficial effect is: the movable plate proposed by the present invention can move smoothly, when the movable plate stops, the lower pressure rod presses down on the surface of the swing plate, waits for the swing plate to swing, and the first plug-in rod descends and is plugged into the plug-in hole, the first plug-in rod stabilizes the movable plate and can share the force of the servo hydraulic cylinder, and a magnet is arranged at the bottom of the first plug-in rod, and an electromagnet is arranged inside the plug-in hole, after the electromagnet in the plug-in hole is energized, the first plug-in rod is pushed up, so that the movable plate can move again.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic steering gears, in particular to a marine hydraulic steering gear. Background Art

[0002] A device that uses hydraulic oil as the working medium and can turn the ship and maintain the rudder position is called a hydraulic steering gear. According to the different power sources, it can be divided into manual, electric, and electric hydraulic steering gears. Electric hydraulic steering gears are reliable, easy to operate, lightweight and durable, highly economical, and easy to maintain and manage. They are ideal steering devices for ships.

[0003] In the prior art, the movement of the tooth plate is controlled by a servo hydraulic cylinder, which drives the tooth rod at the end of the rudder plate to rotate, thereby realizing the angle control of the rudder plate;

[0004] However, when the rudder plate is subjected to force, the force of the rudder plate is transmitted to the tooth plate through the tooth rod, and directly transmitted to the servo motor through the tooth plate, causing the servo hydraulic cylinder to be subjected to force, which may cause damage to the servo hydraulic cylinder. Summary of the invention

[0005] The object of the present invention is to provide a marine hydraulic steering gear to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a marine hydraulic steering gear, comprising:

[0007] An outer shell, wherein an inner groove is provided inside the outer shell;

[0008] A movable plate, the surface of which is provided with teeth, an extension plate is fixed on the surface of the movable plate, a first plug-in rod is plugged into the surface of the extension plate, a pressing rod is fixed on the surface of the first plug-in rod, and a plug-in hole is opened inside the inner groove; and an arched plate is arranged inside the inner groove.

[0009] Preferably, a servo hydraulic cylinder is fixed on the surface of the outer shell, a moving rod is arranged at the end of the servo hydraulic cylinder, a limiting tube is fixed inside the inner groove, the moving rod is inserted into the limiting tube, the servo hydraulic cylinder can drive the moving rod to move, the moving rod can move inside the limiting tube, the end of the moving rod is connected to a moving plate, and the moving plate moves with the moving rod.

[0010] Preferably, a rotating rod is provided inside the shell, the rotating rod can rotate inside the shell, a rudder plate is fixed to the bottom of the rotating rod, the rudder plate rotates along with the rotating rod, a gear is fixed to the surface of the rotating rod, two sets of limit rings are fixed to the surface of the rotating rod, and the limit rings are located at the top and bottom of the gear.

[0011] Preferably, an extension plate is fixed on the surface of the movable plate, and two groups of first plug-in rods are plugged into the surface of the extension plate. The first plug-in rod and the extension plate move with the movable plate. A downward pressure rod is fixed on the top of the first plug-in rod. The first plug-in rod can be lifted and lowered inside the extension plate. A connecting rod is fixed between the two groups of first plug-in rods, and a spring is provided on the surface of the connecting rod. The other end of the spring is connected to the surface of the extension plate, and the spring has a pulling force on the connecting rod.

[0012] Preferably, the bottom of the first plug-in rod can be plugged into the plug-in hole, the pressing rod is located at the top of the arched plate, and the pressing rod is supported on the surface of the arched plate after moving.

[0013] Preferably, an arc-shaped groove is provided inside the inner groove, a second plug-in rod is inserted into the arc-shaped groove, a damping pad is provided on the surface of the second plug-in rod, and the second plug-in rod can move in the arc-shaped groove.

[0014] Preferably, a rotating shaft is provided on the surface of the arch plate, a swing plate is fixed on the surface of the rotating shaft, the swing plate can swing along the rotating shaft, elastic blocks are provided on the top and bottom of the swing plate, the elastic blocks are connected to the surface of the arch plate, so that the swing plate is in a horizontal position, and the second plug-in rod is located in the middle position of the arc groove.

[0015] Preferably, a plurality of groups of rollers are provided on the surface of the swing plate, and the rollers can roll on the surface of the swing plate.

[0016] Preferably, a magnet is provided at the bottom of the first plug rod, and an electromagnet is provided inside the plug hole. When the first plug rod is plugged into the plug hole, the electromagnet in the plug hole is activated to push the first plug rod out of the plug hole.

[0017] Preferably, the arched plates are provided in multiple groups, and two groups of swinging plates are provided between two groups of arched plates.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The second plug-in rod on the surface of the swing plate proposed by the present invention is plugged into the arc groove. Since the surface of the second plug-in rod is provided with a damping pad, the second plug-in rod moves slowly in the arc groove. Due to the movement of the lower pressure rod, the lower pressure rod will not drop quickly, and the first plug-in rod will not be plugged into the plug-in hole. The movable plate can move smoothly. When the movable plate stops, the lower pressure rod is pressed down on the surface of the swing plate, waiting for the swing plate to swing, and the first plug-in rod is inserted into the plug-in hole after it drops. The first plug-in rod stabilizes the movable plate and can share the force of the servo hydraulic cylinder. A magnet is provided at the bottom of the first plug-in rod, and an electromagnet is provided inside the plug-in hole. When the electromagnet in the plug-in hole is energized, the first plug-in rod is pushed up, so that the movable plate can move again. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 This is a structural schematic diagram of another viewing angle of the present invention.

[0022] Figure 3 It is a schematic diagram of the internal structure of the shell of the present invention.

[0023] Figure 4 It is a schematic diagram of the structure of the movable plate of the present invention.

[0024] Figure 5 It is a schematic diagram of the arched plate structure of the present invention.

[0025] Figure 6 for Figure 5 A schematic diagram of the enlarged structure in the middle.

[0026] In the figure: outer shell 1, inner groove 2, servo hydraulic cylinder 3, rotating rod 4, rudder plate 5, limiting ring 6, teeth 7, moving plate 8, gear 9, limiting tube 10, moving rod 11, plug hole 13, pressing rod 14, connecting rod 15, spring 16, first plug rod 17, extension plate 18, arch plate 20, rotating shaft 21, roller 22, second plug rod 23, arc groove 24, swing plate 25. DETAILED DESCRIPTION

[0027] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figures 1 to 6 , the present invention provides a technical solution:

[0029] Embodiment 1: A marine hydraulic steering engine comprises: an outer shell 1, an inner groove 2 is provided inside the outer shell 1; a movable plate 8, a surface of the movable plate 8 is provided with teeth 7, an extension plate 18 is fixed to the surface of the movable plate 8, a first plug-in rod 17 is inserted on the surface of the extension plate 18, a lower pressure rod 14 is fixed to the surface of the first plug-in rod 17, and a plug-in hole 13 is provided inside the inner groove 2; and an arch plate 20 is arranged inside the inner groove 2, due to the support of the arch plate 20, the first plug-in rod 17 at the end of the lower pressure rod 14 will not be inserted into the plug-in hole 13, and when the lower pressure rod 14 passes between the arch plates 20, the lower pressure rod 14 presses down on the surface of the swing plate 25, so that the swing plate 25 swings along the rotating shaft 21.

[0030] Embodiment 2: On the basis of embodiment 1, a servo hydraulic cylinder 3 is fixed on the surface of the outer shell 1, and a moving rod 11 is arranged at the end of the servo hydraulic cylinder 3. A limiting tube 10 is fixed inside the inner groove 2, and the moving rod 11 is inserted into the limiting tube 10. The servo hydraulic cylinder 3 can drive the moving rod 11 to move, and the moving rod 11 can move inside the limiting tube 10. The end of the moving rod 11 is connected to the moving plate 8, and the moving plate 8 moves with the moving rod 11. An arc groove 24 is opened inside the inner groove 2, and a second plug-in rod 23 is inserted in the arc groove 24. A damping pad is arranged on the surface of the second plug-in rod 23, and the second plug-in rod 23 can move in the arc groove 24. The pressing rod 14 is pressed down on the surface of the swing plate 25, so that the swing plate 25 swings along the rotating shaft 21, and the second plug-in rod 23 on the surface of the swing plate 25 is inserted in the arc groove 24. Since the surface of the second plug-in rod 23 is provided with a damping pad, the second plug-in rod 23 moves slowly in the arc groove 24.

[0031] A rotating rod 4 is provided inside the outer shell 1, and the rotating rod 4 can rotate inside the outer shell 1. A rudder plate 5 is fixed to the bottom of the rotating rod 4, and the rudder plate 5 rotates along with the rotating rod 4. A gear 9 is fixed to the surface of the rotating rod 4, and two sets of limit rings 6 are fixed to the surface of the rotating rod 4, and the limit rings 6 are located at the top and bottom of the gear 9.

[0032] An extension plate 18 is fixed to the surface of the movable plate 8, and two groups of first plug-in rods 17 are plugged into the surface of the extension plate 18. The first plug-in rod 17 and the extension plate 18 move with the movable plate 8. A downward pressing rod 14 is fixed to the top of the first plug-in rod 17, and the first plug-in rod 17 can be lifted and moved inside the extension plate 18. A connecting rod 15 is fixed between the two groups of first plug-in rods 17, and a spring 16 is provided on the surface of the connecting rod 15. The other end of the spring 16 is connected to the surface of the extension plate 18, and the spring 16 has a pulling force on the connecting rod 15. The bottom of the first plug-in rod 17 can be plugged into the plug hole 13, and the downward pressing rod 14 is located at the top of the arched plate 20. After the downward pressing rod 14 moves, it is supported on the surface of the arched plate 20. A rotating shaft 21 is provided on the surface of the arched plate 20, and a swinging plate 25 is fixed to the surface of the rotating shaft 21. The swinging plate 25 can swing along the rotating shaft 21, and the top of the swinging plate 25 Elastic blocks are provided at the top and bottom, and the elastic blocks are connected to the surface of the arched plate 20, so that the swing plate 25 is in a horizontal position, and the second plug-in rod 23 is located in the middle position of the arc groove 24. Multiple groups of rollers 22 are provided on the surface of the swing plate 25, and the rollers 22 can roll on the surface of the swing plate 25. A magnet is provided at the bottom of the first plug-in rod 17, and an electromagnet is provided inside the plug-in hole 13. When the first plug-in rod 17 is plugged into the plug-in hole 13, the electromagnet in the plug-in hole 13 is started, and the first plug-in rod 17 can be pushed out of the inside of the plug-in hole 13. The arched plate 20 is provided with multiple groups, and two groups of swing plates 25 are provided between the two groups of arched plates 20. After the pressing rod 14 is pressed down on the surface of the swing plate 25, the swing plate 25 is waited for to swing. After the first plug-in rod 17 is lowered, it is plugged into the plug-in hole 13. The first plug-in rod 17 stabilizes the movable plate 8 and can share the force of the servo hydraulic cylinder 3.

[0033] The moving rod 11 is driven to move by the servo hydraulic cylinder 3, and the moving rod 11 moves inside the limiting tube 10, and the moving rod 11 drives the moving plate 8 to move, and the teeth 7 on the surface of the moving plate 8 are meshed with the teeth on the surface of the gear 9, and the movement of the moving plate 8 drives the gear 9 to rotate, and the gear 9 drives the rudder plate 5 to swing through the rotating rod 4, so as to control the angle of the rudder plate 5. When the moving plate 8 keeps moving, the pressing rod 14 on the surface of the moving plate 8 moves with the moving plate 8, and the pressing rod 14 moves on the surface of the arch plate 20. Due to the support of the arch plate 20, the first plug-in rod 17 at the end of the pressing rod 14 will not be inserted into the plug-in hole 13, and when the pressing rod 14 passes between the arch plates 20, the pressing rod 14 presses down on the surface of the swing plate 25, so that the swing plate 25 swings along the rotating shaft 21, and the swing plate 2 The second plug-in rod 23 on the surface of the second plug-in rod 23 is plugged into the arc groove 24. Since the surface of the second plug-in rod 23 is provided with a damping pad, the second plug-in rod 23 moves slowly in the arc groove 24. Due to the movement of the lower pressure rod 14, the lower pressure rod 14 will not drop quickly, and the first plug-in rod 17 will not be plugged into the plug-in hole 13, so that the movable plate 8 can move smoothly. When the movable plate 8 stops, the lower pressure rod 14 presses down on the surface of the swing plate 25, and waits for the swing plate 25 to swing. The first plug-in rod 17 drops and then plugs into the plug-in hole 13. The first plug-in rod 17 stabilizes the movable plate 8 and can share the force of the servo hydraulic cylinder 3. A magnet is provided at the bottom of the first plug-in rod 17, and an electromagnet is provided inside the plug-in hole 13. After the electromagnet in the plug-in hole 13 is energized, the first plug-in rod 17 is pushed up, so that the movable plate 8 can move again.

[0034] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A marine hydraulic steering gear, characterized in that: include: A shell (1), wherein an inner groove (2) is formed inside the shell (1); A movable plate (8), the surface of the movable plate (8) is provided with teeth (7), the surface of the movable plate (8) is fixed with an extension plate (18), the surface of the extension plate (18) is plugged with a first plug rod (17), the surface of the first plug rod (17) is fixed with a pressing rod (14), and the interior of the inner groove (2) is provided with a plug hole (13); and an arched plate (20) is arranged inside the inner groove (2).

2. A marine hydraulic steering gear according to claim 1, characterized in that: A servo hydraulic cylinder (3) is fixed on the surface of the housing (1), a moving rod (11) is arranged at the end of the servo hydraulic cylinder (3), a limiting tube (10) is fixed inside the inner groove (2), the moving rod (11) is inserted into the limiting tube (10), the servo hydraulic cylinder (3) can drive the moving rod (11) to move, the moving rod (11) can move inside the limiting tube (10), the end of the moving rod (11) is connected to a moving plate (8), and the moving plate (8) moves along with the moving rod (11).

3. A marine hydraulic steering gear according to claim 2, characterized in that: A rotating rod (4) is arranged inside the housing (1), and the rotating rod (4) can rotate inside the housing (1). A steering plate (5) is fixed at the bottom of the rotating rod (4), and the steering plate (5) rotates along with the rotating rod (4). A gear (9) is fixed on the surface of the rotating rod (4). Two sets of limiting rings (6) are fixed on the surface of the rotating rod (4), and the limiting rings (6) are located at the top and bottom of the gear (9).

4. A marine hydraulic steering gear according to claim 3, characterized in that: An extension plate (18) is fixed on the surface of the movable plate (8), and two groups of first plug-in rods (17) are plugged into the surface of the extension plate (18). The first plug-in rods (17) and the extension plate (18) move along with the movable plate (8). A pressing rod (14) is fixed on the top of the first plug-in rod (17). The first plug-in rod (17) can be lifted and lowered inside the extension plate (18). A connecting rod (15) is fixed between the two groups of first plug-in rods (17). A spring (16) is arranged on the surface of the connecting rod (15). The other end of the spring (16) is connected to the surface of the extension plate (18). The spring (16) has a pulling force on the connecting rod (15).

5. A marine hydraulic steering gear according to claim 4, characterized in that: The bottom of the first plug-in rod (17) can be plugged into the plug-in hole (13), and the lower pressing rod (14) is located at the top of the arch plate (20). After the lower pressing rod (14) moves, it is supported on the surface of the arch plate (20).

6. A marine hydraulic steering gear according to claim 5, characterized in that: The inner groove (2) is provided with an arc groove (24), a second plugging rod (23) is inserted into the arc groove (24), a damping pad is provided on the surface of the second plugging rod (23), and the second plugging rod (23) can move in the arc groove (24).

7. A marine hydraulic steering gear according to claim 6, characterized in that: The surface of the arch plate (20) is provided with a rotating shaft (21), and a swing plate (25) is fixed to the surface of the rotating shaft (21). The swing plate (25) can swing along the rotating shaft (21), and elastic blocks are provided at the top and bottom of the swing plate (25). The elastic blocks are connected to the surface of the arch plate (20), so that the swing plate (25) is in a horizontal position, and the second plug-in rod (23) is located in the middle position of the arc groove (24).

8. A marine hydraulic steering gear according to claim 7, characterized in that: A plurality of groups of rollers (22) are arranged on the surface of the swing plate (25), and the rollers (22) are capable of rolling on the surface of the swing plate (25).

9. A marine hydraulic steering gear according to claim 8, characterized in that: A magnet is arranged at the bottom of the first plug-in rod (17), and an electromagnet is arranged inside the plug-in hole (13). When the first plug-in rod (17) is plugged into the plug-in hole (13), the electromagnet in the plug-in hole (13) is activated to push the first plug-in rod (17) out of the plug-in hole (13).

10. A marine hydraulic steering gear according to claim 9, characterized in that: The arched plates (20) are provided in multiple groups, and two groups of swinging plates (25) are provided between two groups of arched plates (20).

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